Valve-tool



P. MADSEN.

VALVE TOOL. APPLICATION FILED mm. 3|, m9.

368,446. Patented Feb. 15,1921.

' to the person making PETER KADBEH, 01' CHICAGO, ILLINOIS,

ASSIGR'OB. l0 0. JAY SMITH, OI OHIO AGO, ILLINOIS.

VALVE-TOOL.

Specification of Letters Patent.

Patented Feb. 15, 1921.

Application filed March 31, 1919. Serial No. 288,869.

To all whom it may concern:

Be it known that I, Pn'mn MADSEN, a citizen of the United States, and aresident of the city of Chicago, in the county of ook and State ofIllinois, have invented certain new and useful Improvements in Valve-Tools; and I do hereby declare that the following is a full, clear, andexact description of the same, reference being had to the accompanyingdrawings, and to the numerals of reference marked thereon, which form apart of this specification.

In removing or mounting split washers or ins for engine valvesconsiderable trouble is often experienced, caused primarily by slippingof the tool used in holding the strong valve spring compressed, therebyreleasing the valve spring and causing injury the valve changes.

To obviate accidental injuries when engine valve washers or pins arebeing replaced, an improved type of an engine valve tool has beendevised, whereby engine valve washers or pins may be convenientlyremoved or mounted in place without subjecting a person making thechange to accidental injuries. 7

It is an object of this invention to provide an improved engine valvetool permittin convenient mounting or removal of was ers or pins.

Another object of the invention is the construction of an engine valvetool wherein clamping jaws are adapted to be adjusted by a slidablemember to engage around clamp, and then release an engine valve pin.

It is also an object of the invention to construct an engine tool havinga member slidably enga ed on the clamping arms whereby the c ampin jawsat the end of said arms are adapts to securely clamp an engine valve pintherebetween when the member is slid rearwardly a certain distance, acontinuation of said rearward movement causing the clamping jaws to moveapart to release the pin.

A further object of this invention is the construction of a tool whereinconnected clamping tongs have a member slidable thereon and adapted bymovement on said tongs to engage around, clamp, and then eject a nut orwasher.

It is an important object. of this invention to provide a simple andeffective tool adapted primarily for mountin and removing engine valvepins or wasiers without subjecting an operator to accidental inur es dueto slipping of the engine valve springs.

Other and further important objects of the invention will be apparentfrom the disclosures in the specification and drawings.

The invention (in a preferred form) is illustrated in the drawings andhereinafter more fully described.

On the drawings:

Figure 1 is a top plan view of 'a tool embodying the principles of thisinvention;

Fig. 2 is a side view thereof;

Fig. 3 is a sectional view taken on line 3-3 of Fig. 1;

Fig. 4 is a plan view of the tool showing the slide member in positionreleasing an engine valve pin;

Fig. 5 is a vlew of the clamping end of'the tool showing the operationin dotted lines;

Fig. 6 is a plan view of a modified form of the device; and

Fig. 7 is a section taken on the line 7--7 of Fig. 6.

As shown on the drawings: 1

The tool comprises a flexible looped metal strap 1, the ends of whichconverge or are bent toward one another to form pivoted arms or tongs 2.the free ends of which are curved outwardly to aiford jaws 3. The endsof the jaws are bent to form gripping flanges 4.

Disposed within the metal loop 1, which forms the handle of the tool, isa slidable adjusting member embracing a metal strap formed as shown inFig. 1, to provide a finger loop 5. formed in the bight end of saidmember, between side arms 6, the forward portion 7 of which convergewith the ends bent to lie adjacent one another to form an e'ecting tip8. As shown the slidable mem er 5-8 may be formed of one adjustablydisposed within the handle and in sliding en agement with the tongs 2,whereby the c amping jaws 34 are a apted to be e erated depending uponthe movement of tlie slidable member.

shown in Fig. 4, the reference numeral 10 indicates an engine valve pin,in released position between clamping jaws of the tool. A split or openon e valve washer 11 is shown in 'F g. 5, amped between the rounded jaws3. in position to be ejected by the e'ector 8, when the slidable memberis move forwardly to cause separation of the jaws as shown by the dottedlines.

Figs. 6 and 7 show a modified form of tool in the form of a wrench andcomprising a rigid metal arm or tong 12, having integrally formed on oneend thereof a transversely passaged head or collar 13, on which ispivotally mounted by means of a pivot pin or bolt 14, one end of an armor tong 15. Integrally formed on the free end of each of the tongs 12and 15 is a jaw 16, provided with a notch 17. The notches 17 aredisposed opposite each other to permit a nut to be easily grippedbetween the jaws 16.

A slidable member is movably engaged on the tongs 12 and 15, tofacilitate o eration of the clamping jaws. The sli able member embracesa U-shaped or channelshaped metal base 18, having integrally formedcentrally on the interior thereof a rib or boss 19, the upper end ofwhich is flat and disposed in the plane of the upper ends of the basesides. A top piece or plate 20 is. removably secured across the to ofthe base by means of screws 21, which thread into the boss 19. As shownin Fig. 7, the tongs 12 and 15 are ositioned on opposite sides of theboss 19. ovement of the slidable member on the wrench tongs serves tomove the wrench jaws 16 to either engage or release a nut. l

The operation is as follows:

To insert a pin in the apertured projecting stem of an engine valve thetool is adjusted' to separate the jaws 3-3, by gripping the too by thehandle 1, with the orefinger of the persons hand projecting through thefinger loop 5 of the s idable member and menu said member forwardly bythe forefin r. he open jaws are placed oil-opposite si es of the pin 10,and the slidable membe the forefin r to an intermediate or middleposition 0 adjustment in which the guide members 9, slidable upon thetongs 2, have forced the clamping jaw gripping flanges 4 tightlytogether to securely grip the pin 10. In the intermediate position ofthe slide member the tong portions 22 contact each other. The pin thusheld secured between the jaw flanges 4, is next inserted through thepin.

r 5-8 is pulled rearwardl bvthe opening in the pro ecting upper end ofthe engine valve stem, the spring of the engine valve first bein heldcompressed by any suitabletool. 0 release hold of the pm 10, after ithas been inserted through the valve stem, the slide member 5+8 is pulledrearwardly still fartherinto arear o sition of adjustment, shown in'Fig.4. his last movement of the slide member acts to force the tong portions22 more tightly together, flexing the portions between 22 and thehandle 1. This will cause the portions 3 and 4 to rotate about thecontacting ends of 22 as a pivot and open the gripping flanges 4,whereby the pin 10 is'released and the tool removed from engagement withthe engine valve parts. The engine valve spring is then released.

To remove a pin from an engine valve the engine valve s ring is firstcompressed and the slide mem r of the tool is moved to its forwardposition to separate the jaws which are then engaged on opposite sidesof The slide member 58 is then pulled rearwardly into its intermediateor locking position, wherein the jaws are forced together to clamp thein therebetween. The pin is then removed y simply pulling the same outof the valve stem opening.

In using the improved tool for mounting or removing an engine valve pin,it will be particularly noted that the fingers of a person performingthe operation are not brought into close on agement with the engme valveparts, an as a consequence are. protected against injury should thetool, holding the valve spring compressed, be accidentall released toallow the spring to snap bac into normal position.

As shown in Fig. 5, the tool is disclosed havmg a split engine valvewasher 11, clamped between thej aws 3. To release the washer after ithas been positioned around an engine valve stem, the slide member 5-8 ismoved forwardly from the full-line position shownv in 5, until theguides 9 enga e the jaws 3. ins movement of the sli e member causes thetip 8 to contact and eject the washer 11 from between the jaws.

In the modified wrench form of the device, shown in Fig. 6, the pivotallconnected tongs 12 and 15 are adjuste spect to each other by sliding theslide member 18-20 forwardly or rearwardly to adjust the jaws 16 toeither gri or release a nut. Forward movement of t e slide memmer willcause the boss 19 to separate the aws 16, to permit the same to engageon opposite sides of a nut. To gri permit rotation thereof, the sli emember is moved rearwardly thereby forcing the jaws to ther.

umerous details of construction may be varled through a wide rangewithout departing from the principles of this invention, and it istherefore not purposed to limit the invention granted otherwise thannecessitated by the prior art.

I claim as my invention:

1. A tool comprising a loop of resilient material, jaws inte ral withthe sides of said loop at the free en s thereof, portions of the sidesof said loop conver ing toward their free ends, a sliding mem orengaging said con rging portions, each side of said loop ha-Jzng a andbetween the conver ing portion and the jaw whereby motion 0% the slidingmember away from the jaws will cause the jaws to approach and to graspwhatever object is between them, further motion of the sliding member inthe same direction will cause the nearer ends of the converging portionsto contact, and still further motion of the sliding member in saiddirection will cause the jaws to open.

2. A tool of the class described comprising a pair of connectedconverging clamping members, and substantially elliptical adjustingmeans slidably engaged thereon, and means cooperating therewith wherebywhen the adjusting means is moved rearwardly from a forward openinposition to an intermediate position sai clamped together and whenit ismoved to a rear position said members are again separated.

3. A tool comprising connected members having clampin jaws at the freeends thereof, means inclu ing cam surfaces converging toward said freeends and a member slidably engaging said surfaces, whereby, when saidsliding takes place in one direction up to a predetermine point, thejaws will ap roach each other, and means coacting wit said first-namedmeans to cause said 'aws to recede from each other when said s idincontinues in the same direction beyon said point. I

4. A tool comprising a pair of movably connected members convergingforwardly to a point of engagement, jaws on the free ends thereof, andan adjusting means slidably engaging said members and adapted to bemoved forwardly from a rear osition, wherein said members contact eacother and said jaws are separated, to an intermemembers will be diateposition wherein the members and said 'jaws both respectively engageeach other, further forward movement of said means acting to separateboth the jaws and said members.

5. A tool embracing a pair of resilient tongs, clamping jaws at the freeends thereof, a finger o erated member slidably engaged with said tongsto ad'ust said jaws with respect to each other, an an ejector on saidmember and actuated thereby to contact with the object held by the jawsto eject the same.

6. A tool embracing handle, resilient arms 0 integral with the free endsof said manually operable means slidably engaged on said arms withinsaid handle, and an ejecting tip formed on said means adapted to push anarticle from between said jaws when the jaws are separated by movementof said means. a

7. A tool comprising a looped resilient handle, converging arms formedthereon, 'aws on the free ends of said arms, and adusting means slidablebetween the arms, said adjusting means converging toward the jaws andtoward the handle.

8. The combination with a pair of clamping members, of means slidablebetween said members for adjusting the same, and means on the slidablemeans between the clamping members actinglto force the clamped objectfrom between t e members.

9. A pair of tongs, means slidable between the members of said pair foradjusting them&

and means controlled by the first-name means for thrusting away theobject held by the tongs.

10. A pair of tongs, a carriage slidably mounted on both members of saidpair, and a member carried by the carriage and thrust between the freeends of the tongs upon travel of the carriage toward said ends.

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses.

PETER MADSEN.

Witnesses:

RUBY B. SMITH, FRANK T. amn.

